Attachment for spring shade-rollers.



11 191553. .PATBNTED JUNE6,1905.

- E. P. HARVTSHORN.

- ATTACHMENT FOR SPRING SHADE ROLLERS.

APPLICATION FILED PEB.16. 1904.

Attorneys.

UNITED STATES Patented June 1905.

PATENT OFFICE.

EDMUND F. HARTSHORN, OF NEWARK, NEW JERSEY, ASSIGNOR TO STEWARTHARTSHORN COMPANY, OF EAST NEWARK, NEW JER- SEY A CORPORATION OF NEWJERSEY.

ATTACHMENT FOR SPRING SHADE-ROLLERS- SPECIFIGATION forming part ofLetters Patent N 0. 791,553, dated June 6, 1905.

Application filed February 16, 1904. Serial No. 193.872.

To all whom it may concern.-

Be it known that I, EDMUND F. HARTSHORN, a citizen of the United States,residing in the city of Newark, county of Essex, and State of is adescription.

shown in Fig. 5.

The present invention relates to improvements in attachments for springshade-rollers, and has for its object, first, to provide means to causethe pawl or pawls to track on the periphery of the ratchet-hub; second,to providemeans for closing a notch in the ratchet-hub.

In order to better understand the nature of the invention, attentionis.directed to the accompanying drawings, showing one embodiment of theinvention, in which Figure 1 is an end view of a roller with theattachment in place. Fig. 2 is a sectional View on the lines 2 2 ofFig. 1. Fig. ;3 .is a perspective View of one end of a roller with thespear removed, showing the separate parts which form the spear and thelocking-washer. Fig. 4 is a perspective View of a modified form ofwasher. Fig. 5 is a sectional view, on the same plane as Fig. 2, of apart of the spear, showing the locking-washer in the position it assumeswhen first applied to the spear. Fig. 6 is an enlarged view of theopening in the guide-plate, showing the lip on thelockingwasher insection in the position that it will assume when theparts are in theposition Fig. 7 is a view of the same with the parts in the positionshown in Fig. 2. Fig. 8 is a front view of the guide-plate, and Fig. 9is a top view of the locking-washer.

In all of the several views like parts are designated by the samereference-numerals.

In carrying out my invention I provide a spear 1, which may be formed ofthe rectangular cross-sectional shape illustrated and is provided with asquared portion 2 for engagement with the bracket. Surrounding thisspear is a ratchet-hub 3 and, if necessary or desirable, an outer washer4 on one side thereof. The ratchet-hub and washer when usedarepreferably cut or stamped out of sheet metal with central openings,so that the constituent parts may be swaged together by means ofsuitable dies, thus forming the complete spear in a manner similar tothat described in my Patent N 0. 656,288, of August 21, 1900. Theratchet-hub 3 is provided with a guide-flange on the side toward theouter washer 4, so that the pawls 7 7 will always track upon theperiphery of the ratchet-hub. This flange is preferably made separatelyfrom the ratchet-hub and is in the form of a plate 6, having a centralopening which closely surrounds the spear l and engages with the latterbetween the ratchet-hub 3 and the outer washer 4. The plate may beapplied by being placed on the spear between the washer 4 and theratchet-hub and all swaged'in position. The plate is of less diameterthan the roller, so that the outer portions of the pawls and theirsupporting-rivets will be exposed to View, as shown in Fig. 1. The plateis provided with two openings 8, which are so arranged as to be adjacentto the notches 9 in the ratchet-hub. These openings are for the purposeof permitting the entrance of a device for covering one or both ofthenotches and also for the purpose of permitting visual inspection ofthe pawl when it is in place within a notch, the flange otherwise maskinthe notch. I

In connection with the spear having the guide-plate thereon I may use awasher 10,

, washer 10 is provided with an integral lip 12,

about as wide as one of the openings -8 and sufiiciently long so thatwhen the washer 10 is placed upon the washer 4 with the lip through oneof the openings 8 this'lip will ex-,

tend inward sufiiciently far to cover one of the notches 9, and therebyprevent the pawls from engaging with it. The washer 10 is retained inposition after being placed over the washer 4 by the close engagementwith the latter and in addition by the engagement of the sides of thelip 12 with the edges ofthe opening 8. This engagement is increased byforming notches 13 at the base of the lip (see Fig. 9) which will engagewith the edges of the opening. One mode of attachment of the washer isillustrated in Figs. 5, 6, and 7 When applied to the spear, the washeris inclined, the lower edge of its central opening 11 being inengagement with the outer washer 4 and the outer edge of the lip 12entering the upper portion of the opening 8, (see Fig. 6,) the lip beinginclined. (See Fig. 5.) By forcing the lower edge of the washer towardthe guide-plate until it is in contact therewith the upper edge of thewasher may be similarly forced toward the plate, causing the lip to beforced into the opening and becoming horizontal (see Fig. 2) and makingthe notches 13 engage with the edges of the opening. (See Fig. 7..)

By using the device with fittings in which the outer washer 4. is muchlarger in proportion to that shown the washer illustrated in Fig. 4: maybe employed. In this form the lip 12 is made, not from the periphery ofthe washer, but from the base of a notch or depression 14, cut in itstop, so that when it is bent to the form shown the lip will be muchnearer the central opening than is shown in Fig. 3.

The washer may be attached without the need of a tool and when forced inplace with the fingers will engage closely with the outer face of theguide-plate 6, so that it will not interfere with the revolution of theroller.

It is to be understood that one of the notches is to be covered by thelip, the other notch being left open, so that the pawls will operate asusual when the open notch is upward when in position in the bracket.

Having now described my invention, what I claim, and desire to secure byLetters Patent, is

1. In a spring shade-roller, a spear, with a ratchet-hub, a washer and aplate separately formed and swaged thereon, the plate being between thehub and washer, and of larger diameter than the hub, substantially asdescribed.

2. In a spring shade-roller, a spear with a ratchet-hub separatelyformed and swaged thereon, and a plate surrounding the spear and inengagement with the ratchet-hub on the side away from the roller, thesaid plate having openings adjacent to the notches in the ratchet-hub,substantially as described.

3. In a spring shade-roller, the combination with a spear having aratchet-hub thereon, of a pawl engaging therewith, the said hub having aflange on the side away from the roller, the said flange having openingsadjacent to the notches in the ratchet-hub, substantially as described.

4. In a spring shaderoller, the combination with a spear having aratchet-hub thereon, of a pawl engaging therewith, and a washersurrounding the spear, the said washer having a lip which in use willclose a notch in the ratchet-hub, substantially as described.

5. In a spring shade-roller, the combination with a spear having aratchet-hub thereon, of a pawl engaging therewith, the ratchet-hubhaving a flange on the side away from the roller the said flange havingan opening, and a washer surrounding the spear, the said washer having alip which is adapted to pass through an opening in the flange and covera notch in the ratchet-hub, substantially as described.

6. In a spring shade-roller, the combination with a spear having aratchet-hub thereon, of a pawl engaging therewith, a plate, the saidplate having an opening and a washer surrounding the spear, the saidwasher having a lip which is adapted to pass through an opening in theplate and cover a notch in the ratchet-hub, substantially as described.

7. In a spring shade-roller, the combination with a spear having aratchet-hub thereon, of a pawl engaging therewith, a plate, and a washersurrounding the spear, said plate having an opening, and the washerhaving a lip with notches on the sides thereof and which is adapted topass through the opening in the plate and cause the notches to engagewith the sides thereof, substantially as described.

This specification signed and witnessed this 10th day of February, 1904.

EDMUND F. HARTSHORN.

Witnesses:

LEONARD A. DYER, JNo. ROBT. TAYLOR.

